SECURITY FILM USING CODED PATTERNS AND DETECTION APPARATUS THEREOF

摘要

The present invention relates to a security film and a detection apparatus thereof and, specifically, to a security film using coded patterns and a detection apparatus thereof which prevents forgery and falsification by forming one-dimensional barcode, two-dimensional barcode, QR code etc., as coded patterns using invisible phosphor material, infrared ray absorption material, infrared ray reflection material, material sensitive to specific wavelength, polarized material or magnetic material in a size smaller than the originally detectable reference size, and prevents danger of removal by applying the same to several parts of the security film, and can check or trace various information related with a product like production history, distribution channel, genuineness by enlarging and decoding the patterned codes when the patterned codes are detected. [Reference numerals] (607) XXXX year XXX month manufactured;(AA) Decoding algorithm